William mansfield



'w. MANSFIELD.

WINDOW SCREEN.

- APPLICATION FILED FEB. 5. 1919.

1,322,593. Y Patented Nov. 25, 1919.

WILLIAM MANSFIELD, 0F ASHVILLE, PENNSYLVANIA.

WINDOW-SCREEN.

Application filed February 5, 1919.

To all whom it may concern:

Be it known that L'WILLIAM MANsFmLD, a citizen of the United States, residing at Ashville, in the county of Cambria and State of Pennsylvania, have invented certain new and useful Improvements in Wmdow- Screens, of which the following is a spec1fication, reference being had to the accompanying drawings.

This invention relates to window screens, and its general object is to provide a screen which will be caused to closely fit within the sash channels of a window frame.

A further object is to provideca screen of this character having laterally movable end pieces which will be yieldingly forced outward against the faces of the sash channels when the window sash is lowered onto the upper edge of the screen-and the screen forced down firmly against the sill of the window.

Other objects will appear in'the course of the following description.

My invention is illustrated in the accompanying drawings, wherein Figure 1 is a front elevation of a window screen constructed in accordance with my invention;

Fig. 2 is a section on the line 2:2 of Fig. 1; and Y Fig. 3 is a fragmentary perspective view of one corner of the screen with the parts separated.

Referring to these drawings, 1t Wlll be seen that the body of the window screen comprises a rectangular frame formed of the vertical, lateral members 10, the upper and lower longitudinally. extending members 11, and the screen proper 12. The end pieces 10 are less in thickness than the longitudinal pieces 11 and these upper an lower pieces 11 project beyond the end edges of the end pieces 10 and these projecting ends are longitudinally slotted or recessed, as at 13. Disposed between the upper and lower pieces 11 and outward of the pieces 10, are sliding members 1 1. shown most clearly in Fig. 3. These sliding 'members 1 1, as illustrated in Fig. 2, have a'thickness equal to the thickness of the upper and lower pieces 11 and at their extremities the width of each piece 14 is reduced to provide an outwardly projecting tongue 15, these tongues being suificiently thin so as to enter Specification of Letters Patent.

' the members 14.

Patented Nov. 2 5, 1919.

Serial No. 275,153.

the grooves or recesses 13 in the ends of the members 11. The end" portions of these members 11 are reduced in width so as to provide shoulders 16 against which the sliding members bers 1d are longitudinally grooved on their inner edge faces, as at 17, to receive the end members 10 and slide thereon. It will thus be seen that with this construction, the members 14: can slide in or out.-

Attached to the outer edge faces ofthe members Mare the extremities of the upper and lower springs 18. These springs are made of strips of resilient material, the ends of the strips being bent angularly so as to be attached firmly to the end faces of These strips are longer than the length of the members 11 and as a consequence the strips will bow outwardly from the members 11 and will act to force the members 14 inward to the farthest extent permitted by the shoulders 16.

In the use of this device, the screen is placed in the sash channel with its lower spring resting upon the sill. Then the sash is pulled 'down onto the upper spring and this action forces the members 14: laterally outward so that they constitute strips bearing closely against the bottoms of the sash channels and preventing flies, mosquitoes, or other insects from entering around the screen at these points. The flattening of the springs consequent on closing the sash will,

14 will bear and these memas before stated, shift the members 14: laterally outward, but there is sufficient yielding d by the strip 1 1 engaging with the bottom of the sash channel.

A device of this character not only provides for the closing of the space between the screen and the sash channel, but it causes the screen to fit closely without rattling and prevents the inlet of air around the screen and the inlet of dust around the screen, and also permits the screen to fit window frames which are out of shape or wherein the opposite sash channels are not parallel to each other.

It will be seen that my invention is very simple, and that it may be'embodied in a number of different screens and that it may be Very cheaply made.

I olaim: v

1. A window screen having end members mounted upon the body of the screen for free lateral movement, 7 and outwardly bowed springs disposed upon the top and bottom edges of the screen body and having their ends attached to the end members, said springs being arranged for engagement with the window sash and sill to simultaneously move the end members.

2. A window screen having end members slidingly mounted upon the ends of the screen, and an outwardly bowed spring extending longitudinally of thetop and bottom of said screen, the ends of each spring being bent angularly, the ends of one spring being secured to the upper ends of the end members, the ends of the other spring being secured to the lower ends of the end men bers to permit simultaneous adjustment of said end members and their ends.

3. A window screen formed of a rectangular frame comprising upper and lower transversely extending members and laterand lower members,

ally spaced vertically extending members, the longitudinally extending members being less in thickness than the horizontally extending members, said upper and lower members projecting beyond the vertical members and having their ends vertically grooved, and sliding members having tongues sliding in the grooves of'the upper being grooved on its vertical membersof the frame, an outwardly bowed spring freely disposed on the top of the screen, and an outwardlybowed spring freely disposed onthe bottom of thescreen,

the ends of said springs being secured to the ends of the end members, said spring being adapted to operate simultaneously to adjust the end mem'bers. 7 a V g p In testimony whereofI hereunto afiix my signatureinthe presence of two Witnesses.

'WILLIAIVI MANSFIELD. Witnesses: V I

J. J. RHoDY, MARGARET RHoDY.

each of said membersinneredge face to re-' celve and have sliding engagement with the 

